package Demo1;

import java.util.Scanner;

public class Test {
    public static void main(String[] args) {
        Scanner scanner=new Scanner(System.in);
        while(scanner.hasNextInt()){
            int x=scanner.nextInt();
            int y=scanner.nextInt();
            int z=scanner.nextInt();
            Sub sub=new Sub(x,y,z);
            System.out.println(sub.calculate());
        }
    }

}

